sealing off

基本解释

The deficiency of sealing off a borehole by slipping casting in the past is analysed.
分析了以往注浆封孔工艺存在的不足。
It introduces one kind of new technology—— "ladder"-like sealing off a borehole by slipping casting.
提出了一种针对深钻孔的注浆封孔新方法——“阶梯”式注浆封孔方法。
To survive this, the Givin have evolved a means of sealing their entire anatomy in a form of organic exoskeleton vac-suit, sealing off all orifices and entering a state of hibernation.
为了生存，吉文人进化出外骨骼，如同真空防护服一样，把自己的身体组织包裹在里面，闭合所有腔孔，进入冬眠状态。
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They are patrolling along streets, stopping cars and pedestrians to check papers and sealing off some areas to all but residents.
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Then there is Halliburton, which was contracted to cement the production liner in the well casing, effectively sealing off the reservoir from the well bore.
FORBES
But its decision to build a five-kilometre (three-mile) chain-link fence sealing off the centre of the old city of Quebec created an unfortunate symbol of exclusion.
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